Memorial Day marks the unofficial start to summer and that means many on Wall Street will escape New York City on the weekends. But, escaping Manhattan for weekends during the summer is not cheap. Summer rentals can run into the hundreds of thousands of dollars. The most luxurious rentals run into the millions. Yes, people actually do pay this much for a summer rental. TheStreet visits the Linden Estate in South Hampton - one of the priciest summer retreats available - too find out what that cool mil delivers. Jeanne Yurman reports from Southampton, New York.